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Finding the Fourth Proportional to 571,747.80, 789,060.42 and 317,181

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Solution

The fourth proportional to 571,747.80, 789,060.42 and 317,181 is: 437,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,747.80 : 789,060.42 = 317,181 : x
  2. Step 2: Convert to fraction form
    571,747.80/789,060.42 = 317,181/x
  3. Step 3: Cross multiply
    571,747.80x = 789,060.42 × 317,181
  4. Step 4: Simplify right side
    571,747.80x = 250,274,973,076.02
  5. Step 5: Solve for x
    x = 250,274,973,076.02/571,747.80
  6. Step 6: Final answer
    x = 437,736.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.